Powertronic International Limited is an ISO9001 certified and technology-oriented manufacturer of customized Switching Power Supplies since 1989.

We win renown from our specialty in Power Supplies for Thermoelectric(TE) Mini Coolers. We have been the first and a unique maker of TE Cooler Power Supplies with 20 years experience. The main components are designed and manufactured in-house. The transformer, EMC filters and even the housings are our design, so that we can control the quality and delivery of the products.

We also design and manufacture other power conversion products, such as AC-DC Adapter, DC-DC Converter and Battery Conditioner, which serve various applications including DVD players, voice recorders, battery chargers, satellite receivers and water dispensers. The products are produced inaccordance with customers' samples or specification.

Our products have complied with various safety and EMC requirements of various countries. Approvals that we got include UL, CSA, ETL, SAA, TUV, SEMKO, KEMA, ITS, VDE, PSE, QAS...and so on. Additional marks are CE, e1, EMV...etc.

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Power your Electronic is Powertronic's Mission. We designed Electronic Transformer since 1989.


Since 2002, our company has developed the strong reliable, trusted brands which are: